CN213933427U - Narrow limit bending test device of enameled flat wire - Google Patents
Narrow limit bending test device of enameled flat wire Download PDFInfo
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- CN213933427U CN213933427U CN202022959734.6U CN202022959734U CN213933427U CN 213933427 U CN213933427 U CN 213933427U CN 202022959734 U CN202022959734 U CN 202022959734U CN 213933427 U CN213933427 U CN 213933427U
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- rotating shaft
- flat wire
- shaped sliding
- enameled
- bending
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Abstract
The utility model provides an enameled flat wire narrow side bending test device, belongs to enameled flat wire technical field, has solved technical problem such as the influence experimental result of the perk phenomenon appear when enameled flat wire narrow side is crooked. The technical scheme of the utility model is that: a narrow-edge bending test device for enameled flat wires comprises a rack, a bending rotating shaft, a bending pushing device and a plurality of pressing blocks; the machine frame comprises two groups of supporting vertical plates and a working bedplate; the left and right sides respectively is equipped with a set of U-shaped sliding tray on the work platen, installs the pivot mounting hole on the work platen at U-shaped sliding tray middle part, and U-shaped sliding tray bottom is equipped with the slip chamber, and pivot mounting hole bottom is equipped with the pivot fixing base, and crooked pivot includes the body of rod and establishes the cap body at body of rod top, and crooked thrust unit includes sliding block and push rod. The utility model discloses simple structure, convenient operation has guaranteed all to be in the coplanar constantly at crooked in-process enameled rectangular wire both ends and both sides, has avoided the emergence of perk phenomenon, has also avoided the test result to take place the deviation.
Description
Technical Field
The utility model belongs to the technical field of the enameled flat wire, concretely relates to enameled flat wire narrow limit bending test device.
Background
One of the factory-entry test items for the enameled flat wire is a bending test, which is used for the elasticity of a paint film of the enameled flat wire. The round bar is required to perform wide-edge and narrow-edge bending tests on the enameled flat wire, and the insulation should not crack after the tests. In practice, the wide sides can be used for bending tests with round bars, but the narrow sides are not easy to handle. GB4074.7-83 describes the attention of the bending of an enameled rectangular wire, wherein the rectangular wire is bent 180 degrees in the positive and negative directions to form an S shape; and secondly, the two elbows should be kept on the same plane, and the sample should not be tilted.
The traditional narrow-edge bending test is to bend one end of a flat wire and then bend the other end of the flat wire, so that the flat wire cannot be guaranteed to be on the same plane in many times, and the bending test result is influenced due to the fact that the bending head is not fixed well.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide an enameled flat wire narrow limit bending test device, the technical problem such as the influence experimental result of the perk phenomenon appears when having solved enameled flat wire narrow limit bending.
In order to solve the above problem, the technical scheme of the utility model is that: the utility model provides an enameled flat wire narrow side bending test device, wherein: comprises a frame, a bending rotating shaft, a bending pushing device and a plurality of pressing blocks; the machine frame comprises two groups of supporting vertical plates arranged on two sides and a working table plate covering the top surfaces of the two groups of supporting vertical plates;
a group of U-shaped sliding grooves are respectively arranged on the left side and the right side of the working table plate, U-shaped openings of the two groups of U-shaped sliding grooves are oppositely arranged, the inner edge of the front side of the U-shaped sliding groove arranged on the left side of the working table plate and the inner edge of the rear side of the U-shaped sliding groove arranged on the right side of the working table plate are positioned on the same horizontal line, a rotating shaft mounting hole is arranged on the working table plate in the middle of the U-shaped sliding groove, and the axis of the rotating shaft mounting hole is superposed with the central axis of the circular arc section of the U-shaped sliding groove; a sliding cavity is arranged at the bottom of the U-shaped sliding groove, and the width of the notch of the U-shaped sliding groove is smaller than that of the cavity of the sliding cavity;
a rotating shaft fixing seat is arranged at the bottom of the rotating shaft mounting hole, the bent rotating shaft is arranged in the rotating shaft mounting hole and comprises a rod body and a cap body arranged at the top of the rod body, the lower end of the rod body of the rotating shaft penetrates through the rotating shaft mounting hole and then is in threaded connection with the rotating shaft fixing seat, the cap body of the rotating shaft is arranged above the working table plate, and a first flat wire pressing groove is formed between the bottom surface of the cap body of the rotating shaft and the top surface of the working table plate;
the bending pushing device comprises a sliding block and a push rod, the push rod comprises a handheld part and a connecting rod arranged below the handheld part, and the shaft diameter of the handheld part is larger than that of the connecting rod; the width size of the sliding block is consistent with the size of the inner cavity of the sliding cavity, the sliding block is arranged in the sliding cavity and can reciprocate along the sliding cavity, the lower end of a connecting rod of the push rod penetrates through the U-shaped sliding groove and then is in threaded connection with the sliding block in the sliding cavity, the handheld part of the push rod is arranged above the working table plate, and a second flat wire pressing groove is formed between the handheld part and the top surface of the working table plate;
the pressing block is detachably arranged on the top surface of the workbench plate and is positioned between the two groups of U-shaped sliding grooves.
Further, the cross-sectional shape of the sliding cavity is rectangular.
Further, the sliding block is of a cylinder structure.
Furthermore, the compressing block comprises an inverted U-shaped pressing plate and two groups of connecting plates which are respectively arranged at the bottoms of the two sides of the pressing plate, the cross section of the inner cavity of the pressing plate is consistent with that of the enameled flat wire, and the connecting plates are connected with the working table plate through bolts.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the bending of the enameled flat wire in two directions is positioned on the same working table plate, so that the situation that the enameled flat wire is not positioned on the same plane when a sample is picked up to bend the other end after one end of the enameled flat wire is bent is avoided, and the enameled flat wire is always positioned on the top surface of the working table plate in the bending process and does not generate edge warping;
2. the first flat wire pressing groove and the second flat wire pressing groove are arranged, the enameled flat wire is arranged in the two pressing grooves, two sides of the enameled flat wire are pressed simultaneously, and the enameled flat wire is always in a stable state in the process of pushing the handheld part to move;
3. the U-shaped sliding groove ensures that the steel can be smoothly bent and transited to 180 degrees under the specified bending radius, so that the test requirement is met;
4. the width dimension of the notch of the U-shaped sliding groove is smaller than the width dimension of the cavity of the sliding cavity, the sliding block is of a cylinder structure, the sliding block is always clamped in the sliding cavity in the sliding process, and the cylinder structure also ensures the sliding smoothness and cannot be clamped;
5. the setting of compact heap has compressed tightly enamelled flat wire middle part, places and carries out the in-process middle part perk that bends at enamelled flat wire both ends and influence crooked effect.
The utility model discloses simple structure, convenient operation has guaranteed all to be in the coplanar constantly at crooked in-process enameled flat wire both ends and both sides, and the stability of enameled flat wire when having guaranteed the bending has avoided the emergence of upwarping phenomenon, has also avoided the test result to take place the deviation.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the enameled rectangular wire in a linear state;
FIG. 3 is a schematic structural view of the enameled rectangular wire of the present invention in a bent state;
fig. 4 is a schematic structural view of the middle frame of the present invention;
fig. 5 is a schematic structural view of another view of the middle frame of the present invention;
FIG. 6 is a view A-A of FIG. 4;
FIG. 7 is a view B-B of FIG. 3;
fig. 8 is a schematic structural diagram of the middle pressing block of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 to 8 show an enameled flat wire narrow side bending test device, in which: comprises a frame 1, a bending rotating shaft 2, a bending pushing device 3 and a plurality of pressing blocks 4; the machine frame 1 comprises two groups of vertical supporting plates 1-1 arranged on two sides and a working bedplate 1-2 covering the top surfaces of the two groups of vertical supporting plates 1-1;
the left side and the right side of the working table plate 1-2 are respectively provided with a group of U-shaped sliding grooves 1-2-1, U-shaped openings of the two groups of U-shaped sliding grooves 1-2-1 are oppositely arranged, the inner edge of the front side of the U-shaped sliding groove 1-2-1 arranged on the left side of the working table plate 1-2 and the inner edge of the rear side of the U-shaped sliding groove 1-2-1 arranged on the right side of the working table plate 1-2 are positioned on the same horizontal line, a rotating shaft mounting hole 1-2-2 is arranged on the working table plate in the middle of the U-shaped sliding groove 1-2-1, and the axis of the rotating shaft mounting hole 1-2-2 coincides with the central axis of the arc section of the U-shaped sliding groove 1-2-1; the bottom of the U-shaped sliding groove 1-2-1 is provided with a sliding cavity 1-3, and the width of the notch of the U-shaped sliding groove 1-2-1 is smaller than the width of the sliding cavity 1-3;
a rotating shaft fixing seat 1-4 is arranged at the bottom of the rotating shaft mounting hole 1-2-2, the bent rotating shaft 2 is arranged in the rotating shaft mounting hole 1-2-2, the bent rotating shaft 2 comprises a rod body 2-1 and a cap body 2-2 arranged at the top of the rod body 2-1, the lower end of the rod body 2-1 of the rotating shaft 2 penetrates through the rotating shaft mounting hole 1-2-2 and then is in threaded connection with the rotating shaft fixing seat 1-4, the cap body 2-2 of the rotating shaft 2 is arranged above the working table plate, and a first flat wire pressing groove 2-3 is formed between the bottom surface of the cap body 2-2 of the rotating shaft 2 and the top surface of the working table plate 1-2;
the bending pushing device 3 comprises a sliding block 3-1 and a push rod 3-2, the push rod 3-2 comprises a handheld part 3-2-1 and a connecting rod 3-2-2 arranged below the handheld part 3-2-1, and the axial diameter of the handheld part 3-2-1 is larger than that of the connecting rod 3-2-2; the width size of the sliding block 3-1 is consistent with the size of an inner cavity of the sliding cavity 1-3, the sliding block 3-1 is arranged in the sliding cavity 1-3 and can reciprocate along the sliding cavity 1-3, the lower end of a connecting rod 3-2-2 of the push rod 3-2 penetrates through the U-shaped sliding groove 1-2-1 and then is in threaded connection with the sliding block 3-1 in the sliding cavity 1-3, a handheld part 3-2-1 of the push rod 3-2 is arranged above the working bedplate 1-2, and a second flat wire pressing groove 3-3 is formed between the handheld part 3-2-1 and the top surface of the working bedplate 1-2;
the pressing block 4 is detachably arranged on the top surface of the workbench plate 1-2 and is positioned between the two groups of U-shaped sliding grooves 1-2-1.
Further, the cross-sectional shape of the sliding cavity 1-3 is rectangular.
Further, the sliding block 3-1 is of a cylindrical structure.
Further, the pressing block 4 comprises an inverted U-shaped pressing plate 4-1 and two groups of connecting plates 4-2 which are respectively arranged at the bottoms of the two sides of the pressing plate 4-1, the cross section of the inner cavity of the pressing plate 4-1 is consistent with that of the enameled flat wire 5, and the connecting plates 4-2 are connected with the working bedplate 1-2 through bolts.
The utility model discloses a use:
as shown in fig. 1, which is a test device for bending an enameled flat wire, an enameled flat wire 5 is horizontally placed on a working table board 1-2, one end of the enameled flat wire passes through a group of first flat wire pressing grooves 2-3, a group of second flat wire pressing grooves 3-3 and a pressing plate 4-1, then passes through another group of first flat wire pressing grooves 2-1 and another group of second flat wire pressing grooves 3-3, a bending rotating shaft 2 and a connecting rod 3-2-2 are screwed tightly, and the enameled flat wire 5 is further pressed tightly, and at this time, a bending pushing device 3 is in a state shown in fig. 2;
after the pressing block 4 is fixed on the workbench plate 2, the hand-held part 3-2-1 is manually pushed to slide along the U-shaped sliding groove 1-2-1, and the enameled rectangular wire 5 is bent by 180 degrees in two directions, and is in a state shown in fig. 3;
the test results were obtained by observing the condition of the paint film on the enameled rectangular wire 5 at the bend.
The bending test can be carried out on the enameled rectangular wire 5 with different widths by replacing the bending rotating shaft 2 and the bending pushing device 3 with different shaft diameters.
The experimental device can also be used for bending the wide side of the enameled rectangular wire 5, and the process is consistent with the bending of the narrow side.
Claims (4)
1. The utility model provides an enameled flat wire narrow side bending test device which characterized in that: comprises a frame (1), a bending rotating shaft (2), a bending pushing device (3) and a plurality of pressing blocks (4); the machine frame (1) comprises two groups of supporting vertical plates (1-1) arranged on two sides and a working table plate (1-2) covering the top surfaces of the two groups of supporting vertical plates (1-1);
the left side and the right side of the working table plate (1-2) are respectively provided with a group of U-shaped sliding grooves (1-2-1), U-shaped openings of the two groups of U-shaped sliding grooves (1-2-1) are oppositely arranged, the inner edge of the front side of the U-shaped sliding groove (1-2-1) arranged at the left side of the working table plate (1-2) and the inner edge of the rear side of the U-shaped sliding groove (1-2-1) arranged at the right side of the working table plate (1-2) are positioned on the same horizontal line, a rotating shaft mounting hole (1-2-2) is arranged on the working table plate in the middle of the U-shaped sliding groove (1-2-1), the axis of the rotating shaft mounting hole (1-2-2) is superposed with the central axis of the arc section of the U-shaped sliding groove (1-2-1); a sliding cavity (1-3) is arranged at the bottom of the U-shaped sliding groove (1-2-1), and the width of the notch of the U-shaped sliding groove (1-2-1) is smaller than that of the sliding cavity (1-3);
a rotating shaft fixing seat (1-4) is arranged at the bottom of the rotating shaft mounting hole (1-2-2), the bent rotating shaft (2) is arranged in the rotating shaft mounting hole (1-2-2), the bent rotating shaft (2) comprises a rod body (2-1) and a cap body (2-2) arranged at the top of the rod body (2-1), the lower end of the rod body (2-1) of the rotating shaft (2) penetrates through the rotating shaft mounting hole (1-2-2) and then is in threaded connection with the rotating shaft fixing seat (1-4), the cap body (2-2) of the rotating shaft (2) is arranged above the working bedplate, and a first flat wire pressing groove (2-3) is formed between the bottom surface of the cap body (2-2) of the rotating shaft (2) and the top surface of the working bedplate (1-2);
the bending pushing device (3) comprises a sliding block (3-1) and a push rod (3-2), the push rod (3-2) comprises a handheld part (3-2-1) and a connecting rod (3-2-2) arranged below the handheld part (3-2-1), and the shaft diameter of the handheld part (3-2-1) is larger than that of the connecting rod (3-2-2); the width dimension of the sliding block (3-1) is consistent with the dimension of an inner cavity of the sliding cavity (1-3), the sliding block (3-1) is arranged in the sliding cavity (1-3) and can reciprocate along the sliding cavity (1-3), the lower end of a connecting rod (3-2-2) of the push rod (3-2) penetrates through the U-shaped sliding groove (1-2-1) and then is in threaded connection with the sliding block (3-1) in the sliding cavity (1-3), a handheld part (3-2-1) of the push rod (3-2) is arranged above the working bedplate (1-2), and a second flat wire pressing groove (3-3) is formed between the handheld part (3-2-1) and the top surface of the working bedplate (1-2);
the pressing block (4) is detachably arranged on the top surface of the workbench plate (1-2) and is positioned between the two groups of U-shaped sliding grooves (1-2-1).
2. The enameled flat wire narrow side bending test device according to claim 1, characterized in that: the cross section of the sliding cavity (1-3) is rectangular.
3. The enameled flat wire narrow side bending test device according to claim 1, characterized in that: the sliding block (3-1) is of a cylinder structure.
4. The enameled flat wire narrow side bending test device according to claim 1, characterized in that: the compressing block (4) comprises an inverted U-shaped pressing plate (4-1) and two groups of connecting plates (4-2) which are respectively arranged at the bottoms of the two sides of the pressing plate (4-1), the cross section size of the inner cavity of the pressing plate (4-1) is consistent with that of the enameled flat wire (5), and the connecting plates (4-2) are connected with the working bedplate (1-2) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959734.6U CN213933427U (en) | 2020-12-09 | 2020-12-09 | Narrow limit bending test device of enameled flat wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959734.6U CN213933427U (en) | 2020-12-09 | 2020-12-09 | Narrow limit bending test device of enameled flat wire |
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|---|---|
| CN213933427U true CN213933427U (en) | 2021-08-10 |
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| CN202022959734.6U Active CN213933427U (en) | 2020-12-09 | 2020-12-09 | Narrow limit bending test device of enameled flat wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735380A (en) * | 2023-08-16 | 2023-09-12 | 河南华洋电工科技集团有限公司 | Flat wire vertical winding experiment machine |
-
2020
- 2020-12-09 CN CN202022959734.6U patent/CN213933427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735380A (en) * | 2023-08-16 | 2023-09-12 | 河南华洋电工科技集团有限公司 | Flat wire vertical winding experiment machine |
| CN116735380B (en) * | 2023-08-16 | 2023-11-07 | 河南华洋电工科技集团有限公司 | Flat wire vertical winding experiment machine |
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